Fertilization And Early Pregnancy Reproductive Physiology Practice Quiz

13 Questions | Total Attempts: 229

SettingsSettingsSettings
Please wait...
Fertilization And Early Pregnancy Reproductive Physiology Practice Quiz

Questions and Answers
  • 1. 
    The dominant follicle is likely selected during the preceding menstrual cycle, and then grows prolifically during the proliferative phase of the next cycle. You want to administer a receptor antagonist designed to block growth of the dominant follicle. Inhibition of which receptor would most likely result in suppressed growth and development of the dominant follicle?
    • A. 

      Gonadotropin releasing hormone receptor

    • B. 

      Luteinizing hormone receptor

    • C. 

      Follicle stimulating hormone receptor

    • D. 

      Estrogen receptor

    • E. 

      Progesterone receptor

  • 2. 
    Which of the following events of fertilization are associated with changes in intracellular calcium?
    • A. 

      Acrosome reaction

    • B. 

      Cortical reaction

    • C. 

      Hyperactivation

    • D. 

      Germinal vesicle breakdown

    • E. 

      All of the above

  • 3. 
    If a typical menstrual cycle is 30 days long and ovulation occurs on day 15, on what day of the cycle do the intraovarian levels of progesterone typically start to rise?
    • A. 

      Day 12

    • B. 

      Day 15

    • C. 

      Day 14

    • D. 

      Day 16

    • E. 

      Day 18

  • 4. 
    A woman goes to her doctor because she is experiencing annovulatory menstrual cycles of 45‐60 days. The gynecologist wants the woman to experience a normal menstrual cycle of 28 to 30 days, so the doctor prescribes pills that release high levels of hCG over a 24 hour period. If day 1 is the first day of menses, on which day of the menstrual cycle should this woman take the hCG pill to have the best chance of experiencing a 28 to 30 day menstrual cycle?
    • A. 

      Day 10

    • B. 

      Day 12

    • C. 

      Day 15

    • D. 

      Day 18

    • E. 

      Day 20

  • 5. 
    A woman in her early 30s wants to start a family, but is currently on a progesterone‐only method of birth control.  She has the intra‐uterine system (IUS) device removed, and has 3 normal menstrual cycles of exactly 29 days before trying to get pregnant. The woman and her husband engage in daily intercourse for the next 8 months, but she does not get pregnant. She charts her menstrual cycle, and notes that 1 of her menstrual cycles lasted 36 days. Of the following options, what is the most likely explanation for the variation that caused her to experience a single elongated menstrual cycle during the last 8 months?
    • A. 

      An extended secretory phase of the menstrual cycle

    • B. 

      Elevated levels of estradiol during the secretory phase

    • C. 

      An extended proliferative phase of the menstrual cycle

    • D. 

      Elevated levels of progesterone during the secretory phase

    • E. 

      A spontaneous abortion

  • 6. 
    A mature spermatazoan typically survives for how many weeks?
    • A. 

      1‐2 weeks

    • B. 

      3‐4 weeks

    • C. 

      4‐6 weeks

    • D. 

      6‐10 weeks

    • E. 

      10‐15 weeks

  • 7. 
    Elevated production of estriol is associated with which of the following major events of early pregnancy?
    • A. 

      Blastocyst invasion

    • B. 

      Formation of the placenta

    • C. 

      Spiral artery remodeling

    • D. 

      Luteal‐placental shift

    • E. 

      Syncytiotrophoblast hCG production

  • 8. 
    Human chorionic gonadotropin (hCG) rescues the corpus luteum during early pregnancy by acting directly on the granulosa‐lutein cells. Which of the following statements best describes the primary functions of the granulosa‐lutein cells (GLC) and theca‐lutein cells (TLC) during early pregnancy?
    • A. 

      GLC secrete estrogen and progesterone; TLC secrete androgen and estrogen

    • B. 

      GLC secrete progesterone and estrogen; TLC secrete androgen and progesterone

    • C. 

      GLC secrete androgen and estrogen; TLC secrete progesterone and estrogen

    • D. 

      GLC secrete progesterone and androgen; TLC secrete progesterone and androgen

    • E. 

      GLC secrete progesterone and androgen; TLC secrete androgen and estrogen

  • 9. 
    Flutamide is an androgen receptor antagonist that markedly suppresses stromal expansion of the endometrial functionalis zone. Which of the following events would be adversely affected the greatest by suppressing the functionalis zone?
    • A. 

      Implantation

    • B. 

      Gamete transport

    • C. 

      Menstruation

    • D. 

      Decidualization

    • E. 

      Fertilization

  • 10. 
    Acquisition of the LH receptor by the granulosa cells is absolutely necessary for ovulation of the dominant follicle.  Which of the following compounds is secreted by the granulosa cells in response to LH stimulation?
    • A. 

      Testosterone

    • B. 

      Progesterone

    • C. 

      Estradiol

    • D. 

      Fibronectin

    • E. 

      Serine proteases

  • 11. 
    The process of fertilization is a complex set of temporospatially coordinated interactive events between male and female gametes. The adequate transportation of both sperm and oocyte in the female reproductive tract is critical for fertilization. Which physiological change occurs during the ovulatory window that enhances gamete transport in the female reproductive tract?
    • A. 

      Decidualization of the endometrial stroma

    • B. 

      Decreased vaginal secretions

    • C. 

      Increased uterine blood flow

    • D. 

      Decreased uterine contractility

    • E. 

      Thinning of the cervical mucous

  • 12. 
    Estriol is synthesized in large amounts during pregnancy. What is the most likely physiological activity of this estrogen during pregnancy?
    • A. 

      Stimulates vasodilation and uterine blood flow

    • B. 

      Stimulates endometrial decidualization

    • C. 

      Stimulates the secretion of luteal progesterone

    • D. 

      Stimulates vascular remodeling of the spiral arteries

    • E. 

      Stimulates blastocyst invasion

  • 13. 
    A 42 yo married woman in a monogamous relationship has not experienced a menstrual period for 3 months.  The woman is concerned that she is entering menopause, and notes that her mother and older sisters all experienced horrible migraine headaches during the hormone withdrawal associated with menopause. The woman also complains of minor nausea for the past week, which she attributes to a "bug going around". Based on this woman's  history, which hormones should you assay to determine this woman's current menopausal status? 
    • A. 

      Progesterone

    • B. 

      Estradiol

    • C. 

      Human chorionic gonadotropin

    • D. 

      Estriol

    • E. 

      Estrone

Back to Top Back to top